Questões de Inglês - Presente simples | Simple present para Concurso

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Parker Solar Probe: How Nasa is trying to 'touch' the Sun

   Nasa is all set to launch one of the most ambitious missions in its history. It's sending a satellite called the Parker Solar Probe into the Sun's outer atmosphere, or corona. Scheduled for launch on Saturday, the spacecraft promises to crack some longstanding mysteries about our star's behaviour.

(Adapted from: https://www.bbc.com/news/av/science-environment-45113552).

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How octopuses ‘taste’ things by touching

   Octopus arms have minds of their own. Each of these eight supple yet powerful limbs can explore the seafloor in search of prey, snatching crabs from hiding spots without direction from the octopus’ brain. But how each arm can tell what it’s grasping has remained a mystery.

   Now, researchers have identified specialized cells not seen in other animals that allow octopuses to “taste” with their arms. Embedded in the suckers, these cells enable the arms to do double duty of touch and taste by detecting chemicals produced by many aquatic creatures. This may help an arm quickly distinguish food from rocks or poisonous prey, Harvard University molecular biologist Nicholas Bellono and his colleagues report online October 29 in Cell.

   The findings provide another clue about the unique evolutionary path octopuses have taken toward intelligence. Instead of being concentrated in the brain, two-thirds of the nerve cells in an octopus are distributed among the arms, allowing the flexible appendages to operate semiindependently.

(Adapted from: https://www.sciencenews.org/article/octopus-taste-touch-arm-suckers). 

CORONAVIRUS

Coronavirus is a newly discovered virus. It causes a disease called Covid-19. In some parts of the world, it has made lots ............ people sick. Corona is a Latin for crown, because ............. the microscope, these viruses look like a crown .............. spikes ending ............... little blobs.

A lot of symptoms are similar to the flu. You may have dry and itchy cough, fever, lots of sneezing and even hard to breathe. Most of people who has gotten sick with this coronavirus have had a mild case. It means you will not feel the disease. But, for people who are much older or who already have health problems are more likely to get sicker with coronavirus.

If anyone gets sick and feels like they may have coronavirus, they can immediately call their doctors and get help. If there is something we are not sure about the information, confused or worried about, don’t be afraid to ask someone we trust.

Here are some things you can do to protect yourself, family and friends from getting sick: 1) wash your hands often using soap and water. 2) Sneeze into your elbows. It is believed that coronavirus spread through little liquid from our lungs. If you sneeze into your elbows, you can prevent germs for going far into the air. 3) Avoid touching your face. Don’t pick your nose. Don’t touch your mouth. Don’t rub your eyes. They are the places where the virus enter our bodies. 

Remember that this kind of virus can affect anybody. It doesn’t matter where you come from or what country you are from. Don’t forget, there are a lot of helpers out there who are working to protect us from the virus. We can take a part by keeping our health and stay at home to stop the virus spread to others.

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ICEBERG A68a

   An enormous iceberg that is heading toward the island of South Georgia in the southern Atlantic Ocean has broken up into three large chunks. Scientists from NASA have been tracking the berg - dubbed A68a - for several weeks. It actually calved from the Larsen C ice shelf in 2017 and has been floating northwards ever since. In recent weeks, a fast-moving stream of water known as the Southern Antarctic Circumpolar Current Front has put the chunks on a trajectory that means they could run aground off the coast of South Georgia. Scientists say the three fragments are roughly 2,600 square kilometres in size. The submerged part of one chunk is 106 metres at its thickest point.

   The sheer bulk of the three iceberg chunks poses a serious threat to the wildlife of South Georgia. There could be an environmental catastrophe waiting to happen. If the three mini icebergs collide with the seabed, they could obstruct penguins and seals from foraging for fish. They could also block the route between penguin colonies and their feeding grounds during the breeding season. Scientists worry the underside of the fragments could grind the seabed near South Georgia and disrupt delicate underwater ecosystems. This could be exacerbated by the introduction of a mass of fresh water to the ecosystems as the stationary fragments melt over the summer months. 

Available at: https://breakingnewsenglish.com/2012/201229-iceberg-a68a.html Accessed on January 5th 2021.